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Chapter 26 Device HA
ZyWALL 110/310/1100 Series User’s Guide
363
26.3.1 Configuring Active-Passive Mode Device HA
The Device HA Active-Passive Mode screen lets you configure general active-passive mode
device HA settings, view and manage the list of monitored interfaces, and synchronize backup
ZyWALLs. To access this screen, click Configuration > Device HA > Active-Passive Mode.
The following table describes the labels in this screen. See Section 26.4 on page 365 for more
information as well.
Table 130 Configuration > Device HA > Active-Passive Mode
LABEL DESCRIPTION
Show Advanced
Settings / Hide
Advanced
Settings
Click this button to display a greater or lesser number of configuration fields.
Device Role Select the device HA role that the ZyWALL plays in the virtual router. Choices are:
Master - This ZyWALL is the master ZyWALL in the virtual router. This ZyWALL uses the
virtual IP address for each monitored interface.
Note: Do not set this field to Master for two or more ZyWALLs in the same virtual router
(same cluster ID).
Backup - This ZyWALL is a backup ZyWALL in the virtual router. This ZyWALL does not
use any of the virtual IP addresses.
Priority This field is available for a backup ZyWALL. Type the priority of the backup ZyWALL. The
backup ZyWALL with the highest value takes over the role of the master ZyWALL if the
master ZyWALL becomes unavailable. The priority must be between 1 and 254. (The
master interface has priority 255.)
Enable
Preemption
This field is available for a backup ZyWALL. Select this if this ZyWALL should become the
master ZyWALL if a lower-priority ZyWALL is the master when this one is enabled. (If the
role is master, the ZyWALL preempts by default.)
Cluster Settings
Cluster ID Type the cluster ID number. A virtual router consists of a master ZyWALL and all of its
backup ZyWALLs. If you have multiple ZyWALL virtual routers on your network, use a
different cluster ID for each virtual router.
Authentication Select the authentication method the virtual router uses. Every interface in a virtual
router must use the same authentication method and password. Choices are:
None - this virtual router does not use any authentication method.
Text - this virtual router uses a plain text password for authentication. Type the
password in the field next to the radio button. The password can consist of alphanumeric
characters, the underscore, and some punctuation marks (+-/*= :; .! @$&%#~ ‘ \ () ),
and it can be up to eight characters long.
IP AH (MD5) - this virtual router uses an encrypted MD5 password for authentication.
Type the password in the field next to the radio button. The password can consist of
alphanumeric characters, the underscore, and some punctuation marks (+-/*= :; .!
@$&%#~ ‘ \ () ), and it can be up to eight characters long.
See Authentication Types on page 209 for more information about authentication
methods.
Monitored
Interface
Summary
This table shows the status of the device HA settings and status of the ZyWALL’s
interfaces.
Edit Select an entry and click this to be able to modify it.
Activate To turn on an entry, select it and click Activate.